Cutting the cone at various angles gives you various shapes of ellipse. Until the angle of your cut exceeds the angle of the side of the cone.

从侧面不同角度切割圆锥，你便会得到不同的椭圆，直到你的切割角度超过圆锥体侧边的角度。

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Cutting thecone at various angles gives you various shapes of ellipse. Until theangle of your cut exceeds the angle of the side of the cone.

如果你从侧面不同角度切割圆锥，便会有不同样子的椭圆，除非，直到你的切割角度超过圆锥体侧边的角度。

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In one of her favourite ACTS she bends herself backwards at a perfect 90 degree Angle - virtually cutting herself in half so the back of her hands touch her heels.

她最喜欢的表演之一，把她身后折成完美的90度角—实际上把她削掉一半，这样她的手背能碰到后脚跟。

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However, tackling the problem from a supply chain angle represents one of the best means of cutting off a very substantial source of income (tens of millions of dollars per year according to our estimates) from abusive armed groups.

FORBES: A Response to Global Witness